Software Engineer

Location: In Office/Remote (Mon - Fri)
Shift Timings: US Shift
Department: Engineering
Experience: 3+ Years

Job Description

Millennium Group Inc. is looking for an experienced Software Engineer with strong hands-on experience in C#, .NET, AWS, WPF, Windows Services, IIS/Kestrel, and MS SQL/PostgreSQL.

The candidate will be responsible for developing, maintaining, troubleshooting, and enhancing our existing applications and services.

Key Responsibilities

• Develop and maintain applications using C# and .NET.
• Develop and maintain WPF desktop applications using XAML/MVVM.
• Develop and support Windows Services and backend services.
• Develop and maintain REST APIs hosted on IIS/Kestrel.
• Work with Microsoft SQL Server and PostgreSQL, including complex queries, stored procedures, indexes, and performance tuning.
• Deploy, monitor, and troubleshoot applications in AWS.
• Troubleshoot production issues across application, database, server, and cloud environments.
• Participate in code reviews, testing, deployments, and CI/CD processes.
• Write clean, maintainable, secure, and well-tested code.
• Collaborate with developers, QA, and business stakeholders.

Required Skills

• C#
• .NET / .NET 10
• WPF / XAML / MVVM
• Windows Services
• IIS / Kestrel
• Swagger
• AWS
• Microsoft SQL Server (MS SQL)
• PostgreSQL
• REST APIs
• Entity Framework / EF Core
• Git / Source Control
• CI/CD
• Strong debugging and problem-solving skills
• Understanding of OOP, SOLID principles, design patterns, security, and performance optimization

Good to Have

• Docker
• Terraform / CloudFormation
• AWS Lambda, S3, EC2, RDS, CloudWatch, IAM
• Messaging technologies such as SQS/SNS
• Experience modernizing or supporting legacy applications
• Experience working in production environments
• Speak one of these languages: Spanish, Russian, Ukranian

Candidate Profile

Looking for an engineer who can independently troubleshoot problems, work across the application/database/cloud stack, take ownership of production issues, and contribute to improving system performance and reliability.